and redshifted wavelengths. The luminescence yields of the dimers are solvent polarity dependent and decrease dramatically in acetonitrile. More intensive solid-state emission of triphenylsilylphenyl substituted BODIPY dimer is observed with a quantum yield of 9.7% relative to the phenyl substituted dimer, which could be attributed to the introduction of the bulky group that inhibits aggregation.
通过与FeCl 3的2-位氧化自偶联反应,合成了具有苯基和庞大的三苯基甲
硅烷基苯基取代基的
硼二
吡咯烷酮(BODIPYs)二聚体。已经研究了所有
染料在各种溶剂中和薄膜上的光谱性质。与相应的单体相比,二聚体显示出更高的摩尔吸收系数,相对适中的荧光量子产率和红移波长。二聚体的发光产率取决于溶剂极性,并且在
乙腈。观察到三苯基甲
硅烷基苯基取代的BODIPY二聚体的固态发射强度更高,相对于苯基取代的二聚体,其量子产率为9.7%,这可能归因于引入了抑制聚集的庞大基团。